The order Struthioniformes includes the following families:
(Links will show all of the posts in that family.)
Struthionidae - Ostriches
Rheidae - Rheas
Casuariidae - Cassowaries
Dromaiidae - Emu
Apterygidae - Kiwi
Ñandu / Greater Rhea
kiwi brain
a quickr pickr post
